On 160°, it's a flood light, so you don't want a fringe. Yes people would notice if 90% of the light is focused in the central 80°, and so would the cameras, as 80° is less than the field of the camera, ie you would have "clipping" effect where the sides are dark.
Price has nothing to do with accuracy. My job had me build a testing rig for 200$ for computer mice, it was more accurate than their > 20k investment, more repeatable as well. So yeah, no. Theirs also proved to be way off when I took a deeper look into it.
The issue of affiliation BDSC mentions is one we had as well. People will have a tendency to not trust you when you run tests and surprisingly only your product passes the tests, or your products consistently perform better. Which is obviously an issue, so unless other people confirm the results, spoon of salt (this is true for most things).
At the end of the day, I still trust the "place them side by side and turn them on" approach more.
Price has nothing to do with accuracy. My job had me build a testing rig for 200$ for computer mice, it was more accurate than their > 20k investment, more repeatable as well. So yeah, no. Theirs also proved to be way off when I took a deeper look into it.
The issue of affiliation BDSC mentions is one we had as well. People will have a tendency to not trust you when you run tests and surprisingly only your product passes the tests, or your products consistently perform better. Which is obviously an issue, so unless other people confirm the results, spoon of salt (this is true for most things).
At the end of the day, I still trust the "place them side by side and turn them on" approach more.